vaadin 7 - communication layer


i have a short question about the communication for vaadin 7.

Will is use websockets per default? Or do we have to use the websocket ozone layer addon too?


Vaadin 7 alpha 2 does not provide push support. An API for push implementations and a default implementation (possibly as an add-on) are planned in the alpha 4 timeframe, and have not been designed in detail.

You can see the initial ideas about this on
this page
, but note that it mostly tells we need to evaluate the different options (including websockets) and fall-backs (for browsers that do not support the primary approach).